alright alright... I think I brewed up some idea on allowing LTN depos to work as TCS depos... The idea is as follows:
When you open a LTN depot, an additional UI with a toggle button "Allow as TCS depot"
If you enable it, it will get registered, at which point you get the configure options as before: increase/decrease request.
However, a few limitations I might add... I will leave the original UI, so you can still interact with the train stop to read out/send signals to trains... Maybe at the future I could work at integrating all of this in my custom LTN depot UI, but that's way on the back burner... Leaving the original UI means you will have to set the train stop name correct yourself. This means it could be that you are creating a new depot name that is not connected to any trainbuilder... An easy way will be the UI telling you which trainbuilders are connected... (same as it works now)